Enhancement of Surface Properties for Coal Benefication: Progress Report, August 1, 1989-September 30, 1989.

摘要

The main objective of this research program is to study ways to modify surface properties of coal, pyrite and ash-forming mineral matter for beneficiation of fine coal. Since the differences in surface properties of coal and mineral matter are utilized in several oil based preparation technologies, such as: froth flotation, emulsion flotation, spherical agglomeration and liquid-liquid separation, another objective is to delineate the role of oil. The role of oil can be as a surface modifying agent, an agglomerating medium (bridging liquid) or a collecting phase for coal particles.